common/cmd_sata.c

   1 /*
   2  * Copyright (C) 2000-2005, DENX Software Engineering
   3  *              Wolfgang Denk <wd@denx.de>
   4  * Copyright (C) Procsys. All rights reserved.
   5  *              Mushtaq Khan <mushtaq_k@procsys.com>
   6  *                      <mushtaqk_921@yahoo.co.in>
   7  * Copyright (C) 2008 Freescale Semiconductor, Inc.
   8  *              Dave Liu <daveliu@freescale.com>
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <command.h>
  28 #include <part.h>
  29 #include <sata.h>
  30
  31 int sata_curr_device = -1;
  32 block_dev_desc_t sata_dev_desc[CONFIG_SYS_SATA_MAX_DEVICE];
  33
  34 int __sata_initialize(void)
  35 {
  36         int rc;
  37         int i;
  38
  39         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; i++) {
  40                 memset(&sata_dev_desc[i], 0, sizeof(struct block_dev_desc));
  41                 sata_dev_desc[i].if_type = IF_TYPE_SATA;
  42                 sata_dev_desc[i].dev = i;
  43                 sata_dev_desc[i].part_type = PART_TYPE_UNKNOWN;
  44                 sata_dev_desc[i].type = DEV_TYPE_HARDDISK;
  45                 sata_dev_desc[i].lba = 0;
  46                 sata_dev_desc[i].blksz = 512;
  47                 sata_dev_desc[i].block_read = sata_read;
  48                 sata_dev_desc[i].block_write = sata_write;
  49
  50                 rc = init_sata(i);
  51                 rc = scan_sata(i);
  52                 if ((sata_dev_desc[i].lba > 0) && (sata_dev_desc[i].blksz > 0))
  53                         init_part(&sata_dev_desc[i]);
  54         }
  55         sata_curr_device = 0;
  56         return rc;
  57 }
  58 int sata_initialize(void) __attribute__((weak,alias("__sata_initialize")));
  59
  60 #ifdef CONFIG_PARTITIONS
  61 block_dev_desc_t *sata_get_dev(int dev)
  62 {
  63         return (dev < CONFIG_SYS_SATA_MAX_DEVICE) ? &sata_dev_desc[dev] : NULL;
  64 }
  65 #endif
  66
  67 int do_sata(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  68 {
  69         int rc = 0;
  70
  71         if (argc == 2 && strcmp(argv[1], "init") == 0)
  72                 return sata_initialize();
  73
  74         /* If the user has not yet run `sata init`, do it now */
  75         if (sata_curr_device == -1)
  76                 if (sata_initialize())
  77                         return 1;
  78
  79         switch (argc) {
  80         case 0:
  81         case 1:
  82                 return cmd_usage(cmdtp);
  83         case 2:
  84                 if (strncmp(argv[1],"inf", 3) == 0) {
  85                         int i;
  86                         putc('\n');
  87                         for (i = 0; i < CONFIG_SYS_SATA_MAX_DEVICE; ++i) {
  88                                 if (sata_dev_desc[i].type == DEV_TYPE_UNKNOWN)
  89                                         continue;
  90                                 printf ("SATA device %d: ", i);
  91                                 dev_print(&sata_dev_desc[i]);
  92                         }
  93                         return 0;
  94                 } else if (strncmp(argv[1],"dev", 3) == 0) {
  95                         if ((sata_curr_device < 0) || (sata_curr_device >= CONFIG_SYS_SATA_MAX_DEVICE)) {
  96                                 puts("\nno SATA devices available\n");
  97                                 return 1;
  98                         }
  99                         printf("\nSATA device %d: ", sata_curr_device);
 100                         dev_print(&sata_dev_desc[sata_curr_device]);
 101                         return 0;
 102                 } else if (strncmp(argv[1],"part",4) == 0) {
 103                         int dev, ok;
 104
 105                         for (ok = 0, dev = 0; dev < CONFIG_SYS_SATA_MAX_DEVICE; ++dev) {
 106                                 if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 107                                         ++ok;
 108                                         if (dev)
 109                                                 putc ('\n');
 110                                         print_part(&sata_dev_desc[dev]);
 111                                 }
 112                         }
 113                         if (!ok) {
 114                                 puts("\nno SATA devices available\n");
 115                                 rc ++;
 116                         }
 117                         return rc;
 118                 }
 119                 return cmd_usage(cmdtp);
 120         case 3:
 121                 if (strncmp(argv[1], "dev", 3) == 0) {
 122                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 123
 124                         printf("\nSATA device %d: ", dev);
 125                         if (dev >= CONFIG_SYS_SATA_MAX_DEVICE) {
 126                                 puts ("unknown device\n");
 127                                 return 1;
 128                         }
 129                         dev_print(&sata_dev_desc[dev]);
 130
 131                         if (sata_dev_desc[dev].type == DEV_TYPE_UNKNOWN)
 132                                 return 1;
 133
 134                         sata_curr_device = dev;
 135
 136                         puts("... is now current device\n");
 137
 138                         return 0;
 139                 } else if (strncmp(argv[1], "part", 4) == 0) {
 140                         int dev = (int)simple_strtoul(argv[2], NULL, 10);
 141
 142                         if (sata_dev_desc[dev].part_type != PART_TYPE_UNKNOWN) {
 143                                 print_part(&sata_dev_desc[dev]);
 144                         } else {
 145                                 printf("\nSATA device %d not available\n", dev);
 146                                 rc = 1;
 147                         }
 148                         return rc;
 149                 }
 150                 return cmd_usage(cmdtp);
 151
 152         default: /* at least 4 args */
 153                 if (strcmp(argv[1], "read") == 0) {
 154                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 155                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 156                         ulong n;
 157                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 158
 159                         printf("\nSATA read: device %d block # %ld, count %ld ... ",
 160                                 sata_curr_device, blk, cnt);
 161
 162                         n = sata_read(sata_curr_device, blk, cnt, (u32 *)addr);
 163
 164                         /* flush cache after read */
 165                         flush_cache(addr, cnt * sata_dev_desc[sata_curr_device].blksz);
 166
 167                         printf("%ld blocks read: %s\n",
 168                                 n, (n==cnt) ? "OK" : "ERROR");
 169                         return (n == cnt) ? 0 : 1;
 170                 } else if (strcmp(argv[1], "write") == 0) {
 171                         ulong addr = simple_strtoul(argv[2], NULL, 16);
 172                         ulong cnt = simple_strtoul(argv[4], NULL, 16);
 173                         ulong n;
 174
 175                         lbaint_t blk = simple_strtoul(argv[3], NULL, 16);
 176
 177                         printf("\nSATA write: device %d block # %ld, count %ld ... ",
 178                                 sata_curr_device, blk, cnt);
 179
 180                         n = sata_write(sata_curr_device, blk, cnt, (u32 *)addr);
 181
 182                         printf("%ld blocks written: %s\n",
 183                                 n, (n == cnt) ? "OK" : "ERROR");
 184                         return (n == cnt) ? 0 : 1;
 185                 } else {
 186                         return cmd_usage(cmdtp);
 187                 }
 188
 189                 return rc;
 190         }
 191 }
 192
 193 U_BOOT_CMD(
 194         sata, 5, 1, do_sata,
 195         "SATA sub system",
 196         "sata init - init SATA sub system\n"
 197         "sata info - show available SATA devices\n"
 198         "sata device [dev] - show or set current device\n"
 199         "sata part [dev] - print partition table\n"
 200         "sata read addr blk# cnt\n"
 201         "sata write addr blk# cnt"
 202 );